Predicting Potential Market Opportunities of Unavailable "New Drug" Entities in the United States-Regression Model Building

1987 ◽  
Vol 1 (3) ◽  
pp. 97-120 ◽  
Author(s):  
Masako Nagasawa ◽  
Douglas D. Bradham ◽  
William C. McCormick ◽  
Benjamin F. Banahan
2021 ◽  
Vol 10 (1) ◽  
Author(s):  
Tim Hua ◽  
Chris Chankyo Kim ◽  
Zihan Zhang ◽  
Alex Lyford

As COVID-19 spread throughout the United States, governors and health experts (HEs) received a surge in followers on Twitter. This paper seeks to investigate how HEs, Democratic governors, and Republican governors discuss COVID-19 on Twitter. Tweets dating from January 1st, 2020 to October 18th, 2020 from official accounts of all fifty governors and 46 prominent U.S.-based HEs were scraped using python package Twint (N = 192,403) and analyzed using a custom-built wordcount program (Twintproject, 2020). The most significant finding is that in 2020, Democratic governors mentioned death at 4.03 times the rate of Republican governors in their COVID-19 tweets. In 2019, Democratic governors still mentioned death at twice the rate of Republicans. We believe we have substantial evidence that Republican governors are less comfortable talking about death than their Democratic counterparts. We also found that Democratic governors tweet about masks, stay-at-home measures, and solutions more often than Republicans. After controlling for state-level variations in COVID-19 data, our regression model confirms that party affiliation is still correlated with the prevalence of tweets in these three categories. However, there isn’t a large difference between the proportion of COVID-19 tweets, tweets about the economy, tweets about vaccines, and tweets containing “science-like” words between governors of the two parties. HEs tweeted about death and vaccines more than the governors. They also tweeted about solutions and testing at a similar rate compared to governors and mentioned lockdowns, the economy, and masks less frequently.


Author(s):  
Som Sekhar Bhattacharyya ◽  
Bibhash Laik ◽  
Divya Sharma ◽  
Tirthankar Bose

Venture capital (VC) provides a platform to empowered individuals with financial constraints to transform their ideas into business models and attain commercial success. This article reviewed the growth and trends of VC industry across various regions such as the United States of America (USA), Europe, China, and India. Initially, VC firms flourished and developed in the USA and still it harbors the largest VC industry. From the USA, VC firms spread to Europe and then much later to emerging economies like China and India. Although the VC ecosystem had started late in China, it had registered higher growth when compared to Europe in terms of VC investment. China has become the second largest VC market. It was backed by government initiatives, vast market opportunities, and home-grown technology firm investments. India has started observing growth in VC space later than China but had ample opportunities to allow for a surge in VC activities.


2012 ◽  
Vol 16 (17) ◽  
pp. 1-23 ◽  
Author(s):  
Ashok K. Mishra ◽  
Vijay P. Singh

Abstract Because of their stochastic nature, droughts vary in space and time, and therefore quantifying droughts at different time units is important for water resources planning. The authors investigated the relationship between meteorological variables and hydrological drought properties using the Palmer hydrological drought index (PHDI). Twenty different spatial units were chosen from the unit of a climatic division to a regional unit across the United States. The relationship between meteorological variables and PHDI was investigated using a wavelet–Bayesian regression model, which enhances the modeling strength of a simple Bayesian regression model. Further, the wavelet–Bayesian regression model was tested for the predictability of global climate models (GCMs) to simulate PHDI, which will also help understand their role for downscaling purposes.


Significance The FAA's proposed regulations will open up drone use in the United States to commercial exploitation. While in some respects less rigorous than they might have been, the draft regulations will initially limit drone use. This could leave the United States in a less advantageous position than operators elsewhere in the world to develop drone-based services. Impacts The potential market for these larger drones is put at over 89 billion dollars over the next ten years. Military sales will be 72 billion dollars in that period. End-use control on military exports will help Washington influence allied foreign policy.


2012 ◽  
Vol 207 (1) ◽  
pp. 196-198 ◽  
Author(s):  
K. M. Chan-Tack ◽  
A. Gao ◽  
A. C. Himaya ◽  
E. G. Thompson ◽  
M. E. Singer ◽  
...  

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